Locking device for automobile starting-cranks.



J. VAN TEKELENBURG. v LOOKING DEVICE FOR AUTOMOBILE STARTING UHAHKS.

" A PPL IU ATIOH FILED DE'U. 80,1908.

Patented Jim. '25, 1910.

UNIT D STATES PATENT OFFICE...

JOHN VAN TEKELENIBUR-G, 0F LONG ISLAND CITY, NEW YORK, ASSIGNOR OFONE- THIRD TO ADAM LEIDICI-I, OF BROOKLYN, NEW YOBIL AND ONE-THIRD T0 W'ALTEB MULLER, on NEW YO K. N. Y.

LOCKINGDEVICE non AUTOMO ILE STARTING-CRANKS/h oimoe.

Specification of Letters Patent. P ztttjeittttl Jan. 25,1911)- Application filed December 30. 1888. serial No. 469.955. f

To all whom it may concern:

lie it known that I, Jonxvaiv 'lnnnnnxin no, a citizen of the United States. residing in Long Island City, in the county of Queens and State of New York, have invented a new and useful Improvement in Looking Deviees for Atli'tlillObllO Starting Cranks, of which the following is a specification. This invention has for its object to provide a simpledurable and ellicient locking means for the starting cranklof an anton1obile, the purpose of said locking nnrchanism being to prevent the theft or unauthorized use of theautomobile, as by means of my device the crank can be securely locked against rotation, thereby rendering it impossible for anyone. to start the auttnnobile,

unless provided with proper means for releasing the starting crank and connecting it with the shaft. of: the automobile.

With these various objects in view my invention consists essentially in constructing a starting crank capable of connection to the starting sha'ljt and adapted to normally turn thereon. said crank being provided with means for engaging the disk or head upon the end of the starting shaft, and said crank being also yn'ovided with a locking means for the purpose of holding thee-ngaging means either in or out of engagen'ient with the starting shaft. I

The invention consists also in certain details of construction and novelties of combination, hereinafter fully described and pointed out in the claims.

In the drawing forming a part of this specification:-Figure 1 is a vertical sectional view taken through the starting crank, a portion of the shaft being shown in elevation. Fig. 2 is a front elevation partly in section for the purpose of disclosing the engaging means carried by the starting crank. Fig. 3 is a detail perspective view of the engagingmechanism. Fig. 4c is a detail perspective view of the locking bolt. Fig. 5 is a detail View of the key foroperating the engaging device, and Fig. (3 is a detail view of the key for operating the locking bolt. 7 In the drawing A indicates the usual horizontal shaft and A the head ordisk mounted upon the end thereof, and at the .in order to permit the introduction of the recessed as shown at B. for a purpose here- .ina'tter described.

(1 indicates the starting crank. the upper end of which is made of two sections riveted (1 1.) turns upon the integral trunnions D and one of said trunnions is reduced asshown at L, and is adapted to be engaged by the barrel F of the operating kev 1*. for the purpose of turning the said parts D up or down,

as the case may be, the side of the crank being open at that point, as shown at C key. Thus it will be seentthat when the bolt. or tumbler D is turned up to avertical position it will engage the recess B in the shaft-head,' and connection will be estab lished between the crank and shaft, and now for the purpose of holding the said bolt or tun'ibler in engagement with said, head, I provide the vertically movable spring-actuated bolt E, whlch is arranged between the crank-sections and is adapted to be pro ']GClZ6(l into a notch D produced in the bottom of the bolt or tumbler D. Another re ccss D is produced in. the side of the bolt or tul'nbler D, and which the locking bolt e1'1gageswhen the bolt or tumbler D turned back to a horizontal position as mostclearly shown in Figs. 1 and 2-.

The locking bolt E is provided with a flat base E. which rests upon the coil-spring lit and this bolt also has a rile E uv-hich is adapted to be engaged by the bit (P of the operating key G, which is inserted through the key-hole G produced in the front of the c ank as shown in'Fig. and by means of this key Gr the bolt E can be withdrawn and then by means of the key F the tumbler D can be moved up or down as desired for the purpose of throwing the crank into or out of engagementwith the shaft A and as soon as the tumbler is turned to either one positionor the other, the spring actuated. bolt will immediately lock the said tumbler in that position.

Ifdesired a name-plate can be arranged u on theface'of the crank for the purpose 'of-concealing the key-hole Gr, said name-- I necessary keys to start up the automobile, '10

because when the crank and all of its parts are in theIpositi'ons shown in Fig. 1, the said crank can be, turned Without rotating the shaft, and when it is desired to rotate the shaft, it isfirst'necessary to release or unlock 1 5' the engaging device and then turn said engagingdevice up into engagement with the shaft, and as these operations can only be accomplished bymeans of the proper keys,

, what I laim as new and desire tosecure by TiettersPatentis it is obvious that-I provide a simple and efficientpmeans for preventing the unlawful or unauthorized use. of the machine.

'thus fully described my invention,

1. The combination with a recessed shaft head, of a recessed crank mounted thereon,

a tumblerrota'tably arranged in the recess of the crank, means for locking said tumbler, and a key for releasing and a key for rotating said tumbler.

2. The combination with a shaft provided with a recessed head, of a crank mounted upon said-shaft and head, a pivoted bolt or tumbler carried by the crank, and a sprin actuated bolt arran ed in the crank an adapted to engage t e bolt or tumbler, together with means for moving the spring actuated bolt and the tumbler. i 3'. The combination with a shaft having a recessed head, of a crank mounted upon said shaft and head, a tumbler pivoted in the crank and adapted to engage the recessed head, a sprin actuated bolt arranged in the crank, and adapted to engage a recess in the tumbler, together with keys /for turning the tumbler and releasing the spring actuated bolt, all of said parts being arranged and adapted to operate substantially as shown and, describe Witnesses JQHN DREMER, ANDREW \V. 'GEEKIE. 

